org.onosproject.net.packet.DefaultInboundPacket Java Examples

@Override
public InboundPacket inPacket() {
    IPv4 ipv4 = new IPv4();
    ipv4.setDestinationAddress("10.0.0.1");
    ipv4.setSourceAddress(IP_ADDRESS.toString());
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV4)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC)
            .setDestinationMACAddress(MacAddress.valueOf("00:00:00:00:00:01"))
            .setPayload(ipv4);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    RouterAdvertisement ns = new RouterAdvertisement();
    ICMP6 icmp6 = new ICMP6();
    icmp6.setPayload(ns);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(icmp6);
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1").toOctets());
    ipv6.setSourceAddress(IP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(MacAddress.valueOf("33:33:00:00:00:01"))
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    RouterSolicitation ns = new RouterSolicitation();
    ICMP6 icmp6 = new ICMP6();
    icmp6.setPayload(ns);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(icmp6);
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::2").toOctets());
    ipv6.setSourceAddress(IP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(MacAddress.valueOf("33:33:00:00:00:02"))
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    NeighborSolicitation ns = new NeighborSolicitation();
    ICMP6 icmp6 = new ICMP6();
    icmp6.setPayload(ns);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(icmp6);
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1").toOctets());
    ipv6.setSourceAddress(Ip6Address.valueOf("::").toOctets());
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(BCMAC2)
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    NeighborSolicitation ns = new NeighborSolicitation();
    ICMP6 icmp6 = new ICMP6();
    icmp6.setPayload(ns);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(icmp6);
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1:ff00:0000").toOctets());
    ipv6.setSourceAddress(IP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(BCMAC2)
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    NeighborAdvertisement na = new NeighborAdvertisement();
    na.setTargetAddress(IP2);
    ICMP6 icmp6 = new ICMP6();
    icmp6.setPayload(na);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(icmp6);
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1").toOctets());
    ipv6.setSourceAddress(LLIP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(BCMAC2)
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    IPv6 ipv6 = new IPv6();
    ipv6.setDestinationAddress(Ip6Address.valueOf("ff02::1").toOctets());
    ipv6.setSourceAddress(IP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2.toBytes())
            .setDestinationMACAddress(MacAddress.valueOf("33:33:00:00:00:01"))
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    IPv6 ipv6 = new IPv6();
    ipv6.setDestinationAddress(Ip6Address.valueOf("1000::1").toOctets());
    ipv6.setSourceAddress(IP2);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC2)
            .setDestinationMACAddress(MacAddress.valueOf("00:00:00:00:00:01"))
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    ARP arp = new ARP();
    arp.setSenderProtocolAddress(IP)
            .setSenderHardwareAddress(MAC.toBytes())
            .setTargetHardwareAddress(BCMAC.toBytes())
            .setTargetProtocolAddress(IP);

    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_ARP)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC.toBytes())
            .setDestinationMACAddress(BCMAC)
            .setPayload(arp);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    ONOSLLDP lldp = ONOSLLDP.onosSecureLLDP(src.deviceId().toString(),
                                            new ChassisId(),
                                            (int) src.port().toLong(), "", "test-secret");

    Ethernet ethPacket = new Ethernet();
    ethPacket.setEtherType(Ethernet.TYPE_LLDP);
    ethPacket.setDestinationMACAddress(MacAddress.ONOS_LLDP);
    ethPacket.setPayload(lldp);
    ethPacket.setPad(true);

    ethPacket.setSourceMACAddress("DE:AD:BE:EF:BA:11");

    return new DefaultInboundPacket(dst, ethPacket,
                                    ByteBuffer.wrap(ethPacket.serialize()));

}
 

@Override
public InboundPacket inPacket() {
    ONOSLLDP lldp = ONOSLLDP.onosSecureLLDP(deviceService.getDevice(DID1).id().toString(),
                                            device.chassisId(),
                                            (int) pd1.number().toLong(), "", "test");

    Ethernet ethPacket = new Ethernet();
    ethPacket.setEtherType(Ethernet.TYPE_LLDP);
    ethPacket.setDestinationMACAddress(MacAddress.ONOS_LLDP);
    ethPacket.setPayload(lldp);
    ethPacket.setPad(true);

    ethPacket.setSourceMACAddress("DE:AD:BE:EF:BA:11");

    ConnectPoint cp = new ConnectPoint(device.id(), pd3.number());

    return new DefaultInboundPacket(cp, ethPacket,
                                    ByteBuffer.wrap(ethPacket.serialize()));

}
 

@Override
public void handlePacket(OpenFlowPacketContext pktCtx) {
    DeviceId id = DeviceId.deviceId(Dpid.uri(pktCtx.dpid().value()));

    DefaultInboundPacket inPkt = new DefaultInboundPacket(
            new ConnectPoint(id, PortNumber.portNumber(pktCtx.inPort())),
            pktCtx.parsed(), ByteBuffer.wrap(pktCtx.unparsed()),
            pktCtx.cookie());

    DefaultOutboundPacket outPkt = null;
    if (!pktCtx.isBuffered()) {
        outPkt = new DefaultOutboundPacket(id, null,
                ByteBuffer.wrap(pktCtx.unparsed()));
    }

    OpenFlowCorePacketContext corePktCtx =
            new OpenFlowCorePacketContext(System.currentTimeMillis(),
                    inPkt, outPkt, pktCtx.isHandled(), pktCtx);
    providerService.processPacket(corePktCtx);
}
 

public TestArpRequestPacketContext(Interface fromInterface) {
    super(0, null, null, false);
    ARP arp = new ARP();
    arp.setOpCode(ARP.OP_REQUEST);

    IpAddress targetIp = fromInterface.ipAddressesList().get(0).ipAddress();
    arp.setTargetProtocolAddress(targetIp.toOctets());
    arp.setTargetHardwareAddress(MacAddress.BROADCAST.toBytes());
    arp.setSenderHardwareAddress(MacAddress.NONE.toBytes());
    arp.setSenderProtocolAddress(Ip4Address.valueOf(0).toOctets());
    arp.setHardwareAddressLength((byte) MacAddress.MAC_ADDRESS_LENGTH);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_ARP);
    eth.setSourceMACAddress(MacAddress.NONE);
    eth.setDestinationMACAddress(MacAddress.BROADCAST);
    eth.setVlanID(fromInterface.vlan().toShort());
    eth.setPayload(arp);

    this.inPacket = new DefaultInboundPacket(fromInterface.connectPoint(), eth,
                                             ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    ONOSLLDP lldp = ONOSLLDP.onosSecureLLDP(deviceService.getDevice(DID1)
                                      .id().toString(),
                                            device.chassisId(),
                                            (int) pd1.number().toLong(), "", "test");

    Ethernet ethPacket = new Ethernet();
    ethPacket.setEtherType(Ethernet.TYPE_LLDP);
    ethPacket.setDestinationMACAddress(MacAddress.ONOS_LLDP);
    ethPacket.setPayload(lldp);
    ethPacket.setPad(true);

    ethPacket.setSourceMACAddress("DE:AD:BE:EF:BA:11");

    ConnectPoint cp = new ConnectPoint(device.id(), pd3.number());

    return new DefaultInboundPacket(cp, ethPacket,
                                    ByteBuffer.wrap(ethPacket
                                    .serialize()));

}
 

private void sendPacket(Ethernet ethernet) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(ethernet.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint(srcDeviceId1.toString(),
            Integer.parseInt(srcPortNum1.toString())),
            ethernet,
            byteBuffer);

    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}
 

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId)
        throws PiInterpreterException {
    // Assuming that the packet is ethernet, which is fine since basic.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(packetIn.data().asArray(), 0,
                                                     packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }

    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas()
            .stream().filter(m -> m.id().equals(INGRESS_PORT))
            .findFirst();

    if (packetMetadata.isPresent()) {
        ImmutableByteSequence portByteSequence = packetMetadata.get().value();
        short s = portByteSequence.asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(s));
        ByteBuffer rawData = ByteBuffer.wrap(packetIn.data().asArray());
        return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
    } else {
        throw new PiInterpreterException(format(
                "Missing metadata '%s' in packet-in received from '%s': %s",
                INGRESS_PORT, deviceId, packetIn));
    }
}
 

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId) throws PiInterpreterException {
    // Assuming that the packet is ethernet, which is fine since fabric.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(packetIn.data().asArray(), 0,
                                                     packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }

    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas()
            .stream().filter(m -> m.id().equals(FabricConstants.INGRESS_PORT))
            .findFirst();

    if (packetMetadata.isPresent()) {
        ImmutableByteSequence portByteSequence = packetMetadata.get().value();
        short s = portByteSequence.asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(deviceId, PortNumber.portNumber(s));
        ByteBuffer rawData = ByteBuffer.wrap(packetIn.data().asArray());
        return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
    } else {
        throw new PiInterpreterException(format(
                "Missing metadata '%s' in packet-in received from '%s': %s",
                FabricConstants.INGRESS_PORT, deviceId, packetIn));
    }
}
 

/**
 * Sends an Ethernet packet to the process method of the Packet Processor.
 * @param reply Ethernet packet
 */
private void sendPacket(Ethernet reply) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(reply.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint("1", 1),
            reply,
            byteBuffer);

    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}
 

/**
 * Sends an Ethernet packet to the process method of the Packet Processor.
 *
 * @param ethernet Ethernet packet
 */
private void sendPacket(Ethernet ethernet) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(ethernet.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint("1", 1),
            ethernet,
            byteBuffer);

    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}
 

/**
 * Sends an Ethernet packet to the process method of the Packet processor.
 *
 * @param ethernet Ethernet packet
 */
private void sendPacket(Ethernet ethernet) {
    final ByteBuffer byteBuffer = ByteBuffer.wrap(ethernet.serialize());
    InboundPacket inPacket = new DefaultInboundPacket(connectPoint("1", 1),
            ethernet,
            byteBuffer);

    PacketContext context = new TestPacketContext(127L, inPacket, null, false);
    packetProcessor.process(context);
}
 

@Override
public InboundPacket inPacket() {

    DHCP6 dhcp6 = new DHCP6();
    dhcp6.setMsgType(DHCP6.MsgType.REQUEST.value());
    List<Dhcp6Option> options = Lists.newArrayList();

    // IA address
    Dhcp6IaAddressOption iaAddressOption = new Dhcp6IaAddressOption();
    iaAddressOption.setIp6Address(IP_ADDRESS2.getIp6Address());

    // IA NA
    Dhcp6IaNaOption iaNaOption = new Dhcp6IaNaOption();
    iaNaOption.setOptions(ImmutableList.of(iaAddressOption));
    options.add(iaNaOption);

    dhcp6.setOptions(options);

    UDP udp = new UDP();
    udp.setPayload(dhcp6);
    udp.setSourcePort(UDP.DHCP_V6_CLIENT_PORT);
    udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(udp);
    ipv6.setDestinationAddress(Ip6Address.ZERO.toOctets());
    ipv6.setSourceAddress(Ip6Address.ZERO.toOctets());
    ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV6)
            .setVlanID(this.vlanId.toShort())
            .setSourceMACAddress(MAC2)
            .setDestinationMACAddress(DHCP6_SERVER_MAC)
            .setPayload(ipv6);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
                                                 portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
                                    ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    byte[] dhcpMsgType = new byte[1];
    dhcpMsgType[0] = (byte) DHCP.MsgType.DHCPACK.getValue();

    DhcpOption dhcpOption = new DhcpOption();
    dhcpOption.setCode(DHCP.DHCPOptionCode.OptionCode_MessageType.getValue());
    dhcpOption.setData(dhcpMsgType);
    dhcpOption.setLength((byte) 1);

    DHCP dhcp = new DHCP();
    dhcp.setOptions(ImmutableList.of(dhcpOption));

    dhcp.setClientHardwareAddress(MAC.toBytes());
    dhcp.setYourIPAddress(IP_ADDRESS.getIp4Address().toInt());

    UDP udp = new UDP();
    udp.setPayload(dhcp);
    udp.setSourcePort(UDP.DHCP_SERVER_PORT);
    udp.setDestinationPort(UDP.DHCP_CLIENT_PORT);
    IPv4 ipv4 = new IPv4();
    ipv4.setPayload(udp);
    ipv4.setDestinationAddress(IP_ADDRESS.toString());
    ipv4.setSourceAddress(IP_ADDRESS3.toString());
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV4)
            .setVlanID(VLAN.toShort())
            .setSourceMACAddress(MAC3)
            .setDestinationMACAddress(MAC)
            .setPayload(ipv4);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
            portNumber(INPORT2));
    return new DefaultInboundPacket(receivedFrom, eth,
            ByteBuffer.wrap(eth.serialize()));
}
 

@Override
public InboundPacket inPacket() {
    byte[] dhcpMsgType = new byte[1];
    dhcpMsgType[0] = (byte) DHCP.MsgType.DHCPREQUEST.getValue();

    DhcpOption dhcpOption = new DhcpOption();
    dhcpOption.setCode(DHCP.DHCPOptionCode.OptionCode_MessageType.getValue());
    dhcpOption.setData(dhcpMsgType);
    dhcpOption.setLength((byte) 1);
    DHCP dhcp = new DHCP();
    dhcp.setOptions(Collections.singletonList(dhcpOption));
    dhcp.setClientHardwareAddress(MAC.toBytes());
    UDP udp = new UDP();
    udp.setPayload(dhcp);
    udp.setSourcePort(UDP.DHCP_CLIENT_PORT);
    udp.setDestinationPort(UDP.DHCP_SERVER_PORT);
    IPv4 ipv4 = new IPv4();
    ipv4.setPayload(udp);
    ipv4.setDestinationAddress(IP_ADDRESS3.toString());
    ipv4.setSourceAddress(IP_ADDRESS.toString());
    Ethernet eth = new Ethernet();
    eth.setEtherType(Ethernet.TYPE_IPV4)
            .setVlanID(this.vlanId.toShort())
            .setSourceMACAddress(MAC)
            .setDestinationMACAddress(MAC3)
            .setPayload(ipv4);
    ConnectPoint receivedFrom = new ConnectPoint(deviceId(deviceId),
            portNumber(INPORT));
    return new DefaultInboundPacket(receivedFrom, eth,
            ByteBuffer.wrap(eth.serialize()));
}
 

private void sendEvent(Device device) {
    // Make it look like things came from ports attached to hosts
    eth.setSourceMACAddress("00:00:00:10:00:0" + SRC_HOST)
            .setDestinationMACAddress("00:00:00:10:00:0" + DST_HOST);
    InboundPacket inPkt = new DefaultInboundPacket(
            new ConnectPoint(device.id(), PortNumber.portNumber(SRC_HOST)),
            eth, ByteBuffer.wrap(eth.serialize()));
    providerService.processPacket(new NullPacketContext(inPkt, null));
}
 

/**
 * Parse OpenFlow message context for get Ethernet packet.
 *
 * @param message OpenFlow message
 * @return parsed Ethernet packet
 */
private Ethernet parsePacketInMessage(OFMessage message) {
    OpenFlowPacketContext pktCtx = DefaultOpenFlowPacketContext
            .packetContextFromPacketIn(sw, (OFPacketIn) message);
    DeviceId id = DeviceId.deviceId(Dpid.uri(pktCtx.dpid().value()));
    DefaultInboundPacket inPkt = new DefaultInboundPacket(
            new ConnectPoint(id, PortNumber.portNumber(pktCtx.inPort())),
            pktCtx.parsed(), ByteBuffer.wrap(pktCtx.unparsed()),
            pktCtx.cookie());
    return inPkt.parsed();
}
 

/** Test the physical packet context is delivered to a proper (physical)
 *  virtual network and device.
 */
@Test
public void virtualizePacket() {
    Ethernet eth = new Ethernet();
    eth.setSourceMACAddress(SRC_MAC_ADDR);
    eth.setDestinationMACAddress(DST_MAC_ADDR);
    eth.setVlanID((short) 1);
    eth.setPayload(null);

    InboundPacket pInPacket =
            new DefaultInboundPacket(CP22, eth,
                                     ByteBuffer.wrap(eth.serialize()));

    PacketContext pContext =
            new TestPacketContext(System.nanoTime(), pInPacket, null, false);

    testPacketService.sendTestPacketContext(pContext);

    PacketContext vContext = providerService.getRequestedPacketContext(0);
    InboundPacket vInPacket = vContext.inPacket();

    assertEquals("the packet should be received from VCP12",
                 VCP12, vInPacket.receivedFrom());

    assertEquals("VLAN tag should be excludede", VlanId.UNTAGGED,
                 vInPacket.parsed().getVlanID());
}
 

@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId)
        throws PiInterpreterException {
    // We assume that the packet is ethernet, which is fine since mytunnel.p4
    // can deparse only ethernet packets.
    Ethernet ethPkt;

    try {
        ethPkt = Ethernet.deserializer().deserialize(
                packetIn.data().asArray(), 0, packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }

    // Returns the ingress port packet metadata.
    Optional<PiPacketMetadata> packetMetadata = packetIn.metadatas().stream()
            .filter(metadata -> metadata.id().toString().equals(INGRESS_PORT))
            .findFirst();

    if (packetMetadata.isPresent()) {
        short s = packetMetadata.get().value().asReadOnlyBuffer().getShort();
        ConnectPoint receivedFrom = new ConnectPoint(
                deviceId, PortNumber.portNumber(s));
        return new DefaultInboundPacket(
                receivedFrom, ethPkt, packetIn.data().asReadOnlyBuffer());
    } else {
        throw new PiInterpreterException(format(
                "Missing metadata '%s' in packet-in received from '%s': %s",
                INGRESS_PORT, deviceId, packetIn));
    }
}
 

/**
 * Returns an ONS InboundPacket equivalent to the given pipeconf-specific
 * packet-in operation.
 *
 * @param packetIn packet operation
 * @param deviceId ID of the device that originated the packet-in
 * @return inbound packet
 * @throws PiInterpreterException if the packet operation cannot be mapped
 *                                to an inbound packet
 */
@Override
public InboundPacket mapInboundPacket(PiPacketOperation packetIn, DeviceId deviceId)
        throws PiInterpreterException {

    // Find the ingress_port metadata.
    // *** TODO EXERCISE 3: modify metadata names to match P4Info
    // ---- START SOLUTION ----
    final String inportMetadataName = "<ADD HERE METADATA NAME FOR THE INGRESS PORT>";
    // ---- END SOLUTION ----
    Optional<PiPacketMetadata> inportMetadata = packetIn.metadatas()
            .stream()
            .filter(meta -> meta.id().id().equals(inportMetadataName))
            .findFirst();

    if (!inportMetadata.isPresent()) {
        throw new PiInterpreterException(format(
                "Missing metadata '%s' in packet-in received from '%s': %s",
                inportMetadataName, deviceId, packetIn));
    }

    // Build ONOS InboundPacket instance with the given ingress port.

    // 1. Parse packet-in object into Ethernet packet instance.
    final byte[] payloadBytes = packetIn.data().asArray();
    final ByteBuffer rawData = ByteBuffer.wrap(payloadBytes);
    final Ethernet ethPkt;
    try {
        ethPkt = Ethernet.deserializer().deserialize(
                payloadBytes, 0, packetIn.data().size());
    } catch (DeserializationException dex) {
        throw new PiInterpreterException(dex.getMessage());
    }

    // 2. Get ingress port
    final ImmutableByteSequence portBytes = inportMetadata.get().value();
    final short portNum = portBytes.asReadOnlyBuffer().getShort();
    final ConnectPoint receivedFrom = new ConnectPoint(
            deviceId, PortNumber.portNumber(portNum));

    return new DefaultInboundPacket(receivedFrom, ethPkt, rawData);
}
 

public TestDhcp6ReplyPacketContext(byte msgType, ConnectPoint clientCp, MacAddress clientMac,
                                VlanId clientVlan, Ip6Address clientGwAddr,
                                int relayLevel, boolean overWriteFlag, VlanId overWriteVlan) {
    super(0, null, null, false);


    DHCP6 dhcp6Payload = new DHCP6();
    buildDhcp6Packet(dhcp6Payload, msgType,
            IP_FOR_CLIENT_V6,
            PREFIX_FOR_CLIENT_V6);
    byte[] interfaceId = null;
    if (relayLevel > 0) {
        interfaceId = buildInterfaceId(OUTER_RELAY_MAC,
                                       overWriteFlag ? overWriteVlan.toShort() : OUTER_RELAY_VLAN.toShort(),
                                        OUTER_RELAY_CP);
    } else {
        interfaceId = buildInterfaceId(clientMac, clientVlan.toShort(), clientCp);
    }
    DHCP6 dhcp6 = new DHCP6();
    buildRelayMsg(dhcp6, DHCP6.MsgType.RELAY_REPL.value(),
                  INTERFACE_IP_V6.ipAddress().getIp6Address(),
                  CLIENT_LL_IP_V6,
                  (byte) 0, interfaceId,
                  dhcp6Payload);

    DHCP6 dhcp6Parent = null;
    DHCP6 dhcp6Child = dhcp6;
    for (int i = 0; i < relayLevel; i++) {   // relayLevel 0 : no relay
        dhcp6Parent = new DHCP6();

        buildRelayMsg(dhcp6Parent, DHCP6.MsgType.RELAY_REPL.value(),
                INTERFACE_IP_V6.ipAddress().getIp6Address(),
                OUTER_RELAY_IP_V6,
                (byte) relayLevel, interfaceId,
                dhcp6Child);

        dhcp6Child = dhcp6Parent;
    }
    if (dhcp6Parent != null) {
        dhcp6 = dhcp6Parent;
    }


    UDP udp = new UDP();
    udp.setPayload(dhcp6);
    udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
    udp.setDestinationPort(UDP.DHCP_V6_CLIENT_PORT);
    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(udp);
    ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
    ipv6.setDestinationAddress(IP_FOR_CLIENT_V6.toOctets());
    ipv6.setSourceAddress(SERVER_IP_V6.toOctets());
    Ethernet eth = new Ethernet();
    if (relayLevel > 0) {
        eth.setEtherType(Ethernet.TYPE_IPV6)
                .setVlanID(SERVER_VLAN.toShort())
                .setSourceMACAddress(SERVER_MAC)
                .setDestinationMACAddress(OUTER_RELAY_MAC)
                .setPayload(ipv6);
    } else {
        eth.setEtherType(Ethernet.TYPE_IPV6)
                .setVlanID(SERVER_VLAN.toShort())
                .setSourceMACAddress(SERVER_MAC)
                .setDestinationMACAddress(CLIENT_MAC)
                .setPayload(ipv6);
    }

    this.inPacket = new DefaultInboundPacket(SERVER_CONNECT_POINT, eth,
                                             ByteBuffer.wrap(eth.serialize()));

}
 

public TestDhcp6RequestPacketContext(byte msgType, MacAddress clientMac, VlanId vlanId,
                                    ConnectPoint clientCp,
                                    Ip6Address clientGwAddr,
                                    int relayLevel) {
    super(0, null, null, false);

    DHCP6 dhcp6 = new DHCP6();
    if (relayLevel > 0) {
        DHCP6 dhcp6Payload = new DHCP6();
        buildDhcp6Packet(dhcp6Payload, msgType,
                         IP_FOR_CLIENT_V6,
                msgType == DHCP6.MsgType.REQUEST.value() ? PREFIX_FOR_ZERO : PREFIX_FOR_CLIENT_V6);
        DHCP6 dhcp6Parent = null;
        DHCP6 dhcp6Child = dhcp6Payload;
        for (int i = 0; i < relayLevel; i++) {
            dhcp6Parent = new DHCP6();
            byte[] interfaceId = buildInterfaceId(clientMac, vlanId.toShort(), clientCp);
            buildRelayMsg(dhcp6Parent, DHCP6.MsgType.RELAY_FORW.value(),
                    INTERFACE_IP_V6.ipAddress().getIp6Address(),
                    OUTER_RELAY_IP_V6,
                    (byte) (relayLevel - 1), interfaceId,
                    dhcp6Child);
            dhcp6Child = dhcp6Parent;
        }
        if (dhcp6Parent != null) {
            dhcp6 = dhcp6Parent;
        }
    } else {
        buildDhcp6Packet(dhcp6, msgType,
                                IP_FOR_CLIENT_V6,
                msgType == DHCP6.MsgType.REQUEST.value() ? PREFIX_FOR_ZERO : PREFIX_FOR_CLIENT_V6);
    }

    UDP udp = new UDP();
    udp.setPayload(dhcp6);
    if (relayLevel > 0) {
        udp.setSourcePort(UDP.DHCP_V6_SERVER_PORT);
    } else {
        udp.setSourcePort(UDP.DHCP_V6_CLIENT_PORT);
    }
    udp.setDestinationPort(UDP.DHCP_V6_SERVER_PORT);

    IPv6 ipv6 = new IPv6();
    ipv6.setPayload(udp);
    ipv6.setNextHeader(IPv6.PROTOCOL_UDP);
    ipv6.setDestinationAddress(SERVER_IP_V6_MCAST.toOctets());
    ipv6.setSourceAddress(clientGwAddr.toOctets());

    Ethernet eth = new Ethernet();
    if (relayLevel > 0) {
        eth.setEtherType(Ethernet.TYPE_IPV6)
                .setVlanID(OUTER_RELAY_VLAN.toShort())
                .setSourceMACAddress(OUTER_RELAY_MAC)
                .setDestinationMACAddress(MacAddress.valueOf("33:33:00:01:00:02"))
                .setPayload(ipv6);
    } else {
        eth.setEtherType(Ethernet.TYPE_IPV6)
                .setVlanID(vlanId.toShort())
                .setSourceMACAddress(clientMac)
                .setDestinationMACAddress(MacAddress.valueOf("33:33:00:01:00:02"))
                .setPayload(ipv6);
    }
    this.inPacket = new DefaultInboundPacket(clientCp, eth,
                                             ByteBuffer.wrap(eth.serialize()));
}